Problem with EFS filesystem remount after instance stop / start

Question

Hi, I have created a Linux EC2 instance and added an /dev/sdf volume. After creating a filesystem plus mount point I could run umount and then mount -a without issue. However when I shutdown the instance and later restart the filesystem is not auto-remounted.  Mount -a fails with various errors about missing code-page but I can manually remount the filesystem without problems. I have followed AWS advice on configuring /etc/fstab but still have the problem - Any thoughts?  Kr Ian

Answer

Hi

I have understand that you have problem with EBS mount to the Ec2 at the specified path,  I hope you have followed this link [Automatically mount an attached volume after reboot](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html)

Be sure to check:

*  Backup your /etc/fstab file
* Check the the UUID and the configuration show example below - refered from the link above
* Filesystem type is XFS but if you want use another type

```
UUID=aebf131c-6957-451e-8d34-ec978d9581ae  /data  xfs  defaults,nofail  0  2
```
* try a test with

```
sudo umount /pathof the mount/ -- after this you will be unmounted
sudo mount -a --  if you dont get errors it works 
```
If you check above inputs and let me know if you have issues again

Problem with EFS filesystem remount after instance stop / start

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